Finding the Fourth Proportional to 21,043.62, 29,050.73 and 13,088.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,043.62 : 29,050.73 = 13,088.42 : x
2. Step 2: Convert to fraction form
   21,043.62/29,050.73 = 13,088.42/x
3. Step 3: Cross multiply
   21,043.62x = 29,050.73 × 13,088.42
4. Step 4: Simplify right side
   21,043.62x = 380,227,944.85
5. Step 5: Solve for x
   x = 380,227,944.85/21,043.62
6. Step 6: Final answer
   x = 18,068.56